| Similarity | Rank | |
|---|---|---|
| brainwave | 0.860 | 54462 |
| entrainment | 0.805 | 62176 |
| brainwaves | 0.774 | 82701 |
| biofeedback | 0.743 | 47536 |
| self-hypnosis | 0.742 | 70775 |
| neurofeedback | 0.724 | 99229 |
| tinnitus | 0.720 | 11040 |
| headphones | 0.716 | 9595 |
| earphones | 0.698 | 29391 |
| earbuds | 0.690 | 39297 |
| in-ear | 0.682 | 79087 |
| earphone | 0.682 | 64259 |
| EEG | 0.681 | 33656 |
| hypnotic | 0.681 | 22813 |
| synthesizer | 0.674 | 42097 |
| headphone | 0.672 | 24381 |
| pulsatile | 0.671 | 89642 |
| auditory | 0.669 | 22128 |
| hypnosis | 0.669 | 14788 |
| low-frequency | 0.665 | 74676 |
| subliminal | 0.660 | 33532 |
| audio | 0.657 | 2644 |
| vibrational | 0.655 | 37794 |
| headsets | 0.655 | 28881 |
| metronome | 0.651 | 60740 |